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Lafarge
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Lafarge patents


Recent patent applications related to Lafarge. Lafarge is listed as an Agent/Assignee. Note: Lafarge may have other listings under different names/spellings. We're not affiliated with Lafarge, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "L" | Lafarge-related inventors


A hydraulic composition for the construction of pavements

A hydraulic composition for the construction of pavements, and in particular for the repair of pavements, includes a hydraulic binder including a cement, 0.18% to 0.35% of a superplasticiser, where the percentage is expressed by dry weight compared to the cement, and where the superplasticiser includes a branched polymer including... Lafarge

Novel hydraulic binder and hydraulic composition comprising same

A hydraulic binder which includes a clinker with a specific shape, the clinker including as main phases, given as weight percentages relative to the total weight of the clinker: (i) 70 to 95% of a belite phase having a particle size such that the Dv50 ranges from 5 to 15... Lafarge

Method for the continuous production of a low-density mineral foam

A method for the continuous production of a mineral foam of which the density in the dry state (d) is from 40 to 600 kg/m3, includes (i) mixing cement; a water reducing agent; 0.5 to 10%, % by weight with respect to the total weight of cement, of ultrafine particles... Lafarge

Section of concrete

A section of concrete intended to form a mast for a windmill, the section including a first portion including a first flange, a second portion including a second flange, a prestressing device including at least one visible part located between the first flange and the second flange, a first attaching... Lafarge

Oxy-calcination process

Method and installation for calcining cement raw meal in a calciner whereby fuel and a calciner oxidant having an oxygen content of at least 30% vol are introduced into the calciner so as to generate either an oxidant-lean zone or a fuel-lean zone in the calciner located between the lowermost... Lafarge

Ultra-light mineral foam and producing same

A method for producing a mineral foam includes: (i) independently preparing a cement slurry and an aqueous foam, the cement slurry being prepared by mixing water E and cement C, the cement C including a soluble equivalent quantity x of Na2O, x being expressed by weight for 100 parts cement,... Lafarge

Novel ultra-high performance concrete

A hydraulic composition includes in relative parts by mass with respect to the cement 100 parts of cement the particles of which have a BET specific surface area comprised from 1.20 to 5 m2/g; 32 to 42 parts of water; 5 to 50 parts of a mineral addition A1 the... Lafarge

Ultra-high performance concretes having a low cement content

A hydraulic binder includes, as percentage by mass: from 17 to 55% of a Portland cement, the particles of which have a D50 of from 2μm to 11 μm; at least 5% of silica fume; from 36 to 70% of a mineral addition A1, the particles of which have a... Lafarge

Photovoltaic concrete, its manufacture and construction element including such a concrete

A concrete having a smooth surface, which is wholly or partly coated with a polymer film obtained by polymerisation under the action of radiation, where the film is itself wholly or partly coated with a thin photovoltaic film.... Lafarge

Ultra-high performance non-self-consolidating concrete

A hydraulic binder includes in mass percent from 20 to 82% of a Portland cement the particles of which have a D50 comprised from 2 μm to 11 μm; from 15 to 56% of a non-pozzolanic mineral addition A1, the particles of which have a D50 from 1 to 150... Lafarge

Belite sulfoaluminate binder

A hydraulic binder includes a belite sulfoaluminate clinker and silica having a BET specific surface area in nitrogen of at least 50 m2/g, the quantity of silica being lower than or equal to 5%, the percentage being expressed as a mass percentage in relation to the mass of the binder.... Lafarge

Method for producing an insulating composite building block

A method for producing an insulating composite block including a mineral foam, includes: providing a block including at least one cell having walls which are either sufficiently humid or consist of a water-repellent material, and b. filling the cell with a mineral foam that does not substantially include any calcium... Lafarge








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